feat: Add refresh button and admin restrictions

src/components/layout/AdminHeader.tsx

@@ -1,4 +1,4 @@
-import { Shield, ArrowLeft, Settings } from 'lucide-react';
+import { Shield, ArrowLeft, Settings, RefreshCw } from 'lucide-react';
 import { Button } from '@/components/ui/button';
 import { Link } from 'react-router-dom';
 import { ThemeToggle } from '@/components/theme/ThemeToggle';
@@ -30,6 +30,15 @@ export function AdminHeader() {
 
         {/* Right Section - Admin actions */}
         <div className="flex items-center gap-2">
+          <Button 
+            variant="ghost" 
+            size="sm" 
+            onClick={() => window.location.reload()}
+            title="Refresh admin data"
+          >
+            <RefreshCw className="w-4 h-4" />
+            <span className="hidden sm:ml-2 sm:inline">Refresh</span>
+          </Button>
           {permissions?.role_level === 'superuser' && (
             <Button variant="ghost" size="sm" asChild>
               <Link to="/admin/settings">